GB273135A - Improved rock drill bit - Google Patents
Improved rock drill bitInfo
- Publication number
- GB273135A GB273135A GB2667626A GB2667626A GB273135A GB 273135 A GB273135 A GB 273135A GB 2667626 A GB2667626 A GB 2667626A GB 2667626 A GB2667626 A GB 2667626A GB 273135 A GB273135 A GB 273135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rock drill
- drill bit
- faces
- cylinder
- improved rock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011435 rock Substances 0.000 title abstract 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
273,135. Coaton, A. A. Oct. 25, 1926. Percussive drills. - A percussive rock drill is formed by bevel faces 5 intersecting to form a cutting edge 4, the lateral edges of the faces being reaming edges of the surfaces 7 which are part of a cylinder coaxial with the tool, the remaining parts of the cylinder being flattened or cut away at 10 to provide clearance leaving a limited fringe 7. In making the drill, the wing 3 is formed so that its extreme end is wider than the desired finished width of the cutting' edge, and it is then pressed in at 6 to the cylindrical shape and final width. The same principle may be used to form a cruciform bit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2667626A GB273135A (en) | 1926-10-25 | 1926-10-25 | Improved rock drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2667626A GB273135A (en) | 1926-10-25 | 1926-10-25 | Improved rock drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB273135A true GB273135A (en) | 1927-06-30 |
Family
ID=10247418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2667626A Expired GB273135A (en) | 1926-10-25 | 1926-10-25 | Improved rock drill bit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB273135A (en) |
-
1926
- 1926-10-25 GB GB2667626A patent/GB273135A/en not_active Expired
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